Portable Workpiece Clamping with Tool-Guided Fixation
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Solution Overview
Problem
Existing clamping devices for machining workpieces on construction sites are often cumbersome and impractical due to their size and weight, making it difficult to achieve quick and secure fixation of elongated workpieces like pipes and profiles.
Innovation Solution
A portable clamping device with a lower and upper clamping section that are mechanically connected to guide and support a hand-held power tool, utilizing the tool's weight to securely fix workpieces between the sections, allowing for adjustable clamping and easy alignment without the need for additional supports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional non-portable clamping devices are used, then workpiece clamping stability is improved, but device portability and ease of transport deteriorate
Solution Approach 1:
The clamping device is divided into two separate clamping sections (upper and lower) that can be moved independently. This segmentation allows the device to be portable and adaptable to different locations, while still providing stable clamping when assembled. The sections can be transported separately and then joined at the work location to achieve reliable workpiece fixation.
2Force
If heavy-duty clamping devices are used, then clamping force is improved, but device weight and portability deteriorate
Solution Approach 1:
The clamping device utilizes the weight of the power tool itself as the clamping force. When the power tool is placed on the upper clamping section, its weight automatically generates the necessary downward force to secure the workpiece between the clamping sections. This eliminates the need for heavy-duty clamping mechanisms, reducing overall device weight while maintaining sufficient clamping force for machining operations.
3Manufacturing precision
If manual alignment of clamping sections is required, then clamping precision is improved, but operation time and complexity deteriorate
Solution Approach 1:
The device replaces manual alignment operations with a mechanical guiding connection between the upper and lower clamping sections. This guidance mechanism automatically ensures proper alignment when the sections are assembled, eliminating the need for operators to manually adjust and align the clamping sections. The result is both precise clamping alignment and simplified, faster operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables secure, reliable, and flexible clamping of workpieces of various dimensions, allowing for efficient processing on-site without the need for heavy or non-portable clamping devices, even in challenging environments like scaffolding or roofs.
Implementation Method 1
the upper clamping section is designed to support and guide in a straight line a portable hand-held power tool with which a workpiece clamped in the clamping position between the two clamping sections is machined using the dead weight of the power tool
Data Source
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AI summary
The invention relates to a portable device for clamping workpieces to be processed, for example pipes or profiles to be shortened by means of a hand-held circular saw, with a lower clamping section and an upper clamping section which are movable relative to each other between a clamping position and a release position, wherein the relative movement of the two clamping sections is guided by a mechanical connection between the two clamping sections, and wherein the upper clamping section is designed to support and guide a portable hand-held power tool in a straight line, with which a workpiece clamped in the clamping position between the two clamping sections is processed.